Pirates' Tyler Callihan backed up a play in an unusual way that will make coaches everywhere happy

As baseball players grow up and are taught about playing defense, there's one frequent refrain: Keep moving.There isn't really a reason to be standing still when the ball is in the field of play. You can run to get the ball. You can cover a base. Or you can back up the play.It's backing up the play that can often get overlooked, particularly for outfielders, who spend so much of the game so far away from the action.Pittsburgh Pirates outfielder Tyler Callihan didn't take his backup job for granted on Tuesday night, though, and it saved a run.Callihan was playing right field when a grounder was hit to third base. He knew the throw was going to first, and he knew if there was anywhere at all for him to move in this moment, it was in that direction.MORE: Squirrel steals the show during MLB ga